A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6320-00-593-0379
NSN 6105-01-007-9915
NSN 6130-01-227-5538
NSN 6645-01-068-3042
NSN 4140-00-837-2658
NSN 5975-00-862-4506
NSN 6220-01-011-0865
NSN 6220-00-371-7589
NSN 5935-01-513-4247
NSN 6135-00-235-1938
NSN 5910-01-042-0220
NSN 5935-01-171-5552